Current conditions and the National Weather Service 7-day forecast for Port Costa, California — temperature, rain chance, wind, radar and active alerts.
Wednesday Sep 16: a high near 70°F and a low around 58°F. Highs over the period run 70°F to 85°F.
| Day | High | Low | Precip |
|---|---|---|---|
| Wednesday Sep 16 | 70° | 58° | — |
| Thursday Sep 17 | 74° | 56° | — |
| Friday Sep 18 | 81° | 56° | — |
| Saturday Sep 19 | 81° | 57° | — |
| Sunday Sep 20 | 76° | 56° | — |
| Monday Sep 21 | 79° | 57° | — |
| Tuesday Sep 22 | 85° | — | — |